If Scores on an Exam Have a Mean of 50,a

question 250

Multiple Choice

If scores on an exam have a mean of 50,a standard deviation of 10,and are normally distributed,approximately 95 percent of those taking the exam would be expected to score between

• A)45 and 55.
• B)40 and 60.
• C)35 and 65.
• D)30 and 70.

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